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TPS3824-33DBVR датащи(PDF) 2 Page - Texas Instruments |
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TPS3824-33DBVR датащи(HTML) 2 Page - Texas Instruments |
2 / 14 page TPS3820xx, TPS3823xx, TPS3824xx, TPS3825xx, TPS3828xx PROCESSOR SUPERVISORY CIRCUITS SLVS165E – APRIL 1998 – REVISED DECEMBER 2002 2 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 description (continued) The TPS3820/3/5/8 devices incorporate a manual reset input, MR. A low level at MR causes RESET to become active. The TPS3824/5 devices include a high-level output RESET. TPS3820/3/4/8 have a watchdog timer that is periodically triggered by a positive or negative transition at WDI. When the supervising system fails to retrigger the watchdog circuit within the time-out interval, ttout, RESET becomes active for the time period td. This event also reinitializes the watchdog timer. Leaving WDI unconnected disables the watchdog. In applications where the input to the WDI pin may be active (transitioning high and low) when the TPS3820/3/4/8 is asserting RESET, the TPS3820/3/4/8 does not return to a non-reset state when the input voltage is above Vt. If the application requires that input to WDI is active when RESET is asserted, WDI must be decoupled from the active signal. This can be accomplished by using an N-channel FET in series with the WDI pin, with the gate of the FET connected to the RESET output as shown in Figure 1. WDI RESET TPS3824 WDI External Figure 1 The product spectrum is designed for supply voltages of 2.5 V, 3 V, 3.3 V, and 5 V. The circuits are available in a 5-pin SOT23-5 package. The TPS382x devices are characterized for operation over a temperature range of -40 °C to 85°C. PACKAGE INFORMATION DEVICE NAME DEVICE NAME THRESHOLD VOLTAGE§ MARKING TPS3820-33DBVT† TPS3820-33DBVR‡ 2.93 V PDEI TPS3820-50DBVT† TPS3820-50DBVR‡ 4.55 V PDDI TPS3823-25DBVT† TPS3823-25DBVR‡ 2.25 V PAPI TPS3823-30DBVT† TPS3823-30DBVR‡ 2.63 V PAQI TPS3823-33DBVT† TPS3823-33DBVR‡ 2.93 V PARI TPS3823-50DBVT† TPS3823-50DBVR‡ 4.55 V PASI TPS3824-25DBVT† TPS3824-25DBVR‡ 2.25 V PATI TPS3824-30DBVT† TPS3824-30DBVR‡ 2.63 V PAUI TPS3824-33DBVT† TPS3824-33DBVR‡ 2.93 V PAVI TPS3824-50DBVT† TPS3824-50DBVR‡ 4.55 V PAWI TPS3825-33DBVT† TPS3825-33DBVR‡ 2.93 V PDGI TPS3825-50DBVT† TPS3825-50DBVR‡ 4.55 V PDFI TPS3828-33DBVT† TPS3828-33DBVR‡ 2.93 V PDII TPS3828-50DBVT† TPS3828-50DBVR‡ 4.55 V PDHI † The DBVT package indicates tape and reel of 250 parts. ‡ The DBVR package indicates tape and reel of 3000 parts. § For other threshold voltage versions, please contact the local TI sales office. |
Аналогичный номер детали - TPS3824-33DBVR |
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Аналогичное описание - TPS3824-33DBVR |
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